I've finally given up. I've after a month of messing around with the car and looking through threads I cannot figure out what this car is doing. It's a 2001.5 S4. When the temperature is cold outside the headlights, turn signals, brights (they work when I hold the switch back), & windshield wipers don't work. Cruise control & the button to scroll through the different items on the instrument cluster work. I've replaced both switches and the hazard light switch and still nothing. Nothing is showing up abnormal on my VAGCOM either. Any help would be greatly appreciated.